Spring binder



H. G. BUCHAN. SPRING BINDER. Fl LED DEC.

2 sHEeTs-SHEET 1 2 SHEETS-SHEET 2 Jan. 30, 1923. H. G. BUCHAN. SPR l NG B l NDL-:R Fl LED DEC. IO. l 920.

VE E: Afa/,a Q ,5MM-f Patented Jan. B, 1923i.

-SPRING BINDER.N t t .Application filed December 10, 1920s` TdcLZZfwziom t may concer/m.

Be it .knownnthat I, HUGH GnLLRor BUCHAN, acitizen ofthe UnitedStates, and

a resident of they city oi Newark, inxthe county .of Essex-and State of New. Jersey,

have invented certain new, and useful. Im,-

proveniente ina Spring Binder; and Ido ,hereby` declare thatl the .following is .a full,

clear, 'and .eXact descriptiono .the same,

reieren'ceebeingrhad to the-accompanying drawings, `and. to the numerals ofreference marked thereon, which iorma'partoiithis specification.A w

u Thisv invention relates more particularly to' an. improved `spring binderand the method Aoiassembling the` same` to permit loosev leaves,- pamphlets, ymagazines and the like to be4 removably clamped in plaoebetween the binder eovers. v

i v vItis -anobject of thisinvention .to pro vide, an improved type of a binder wherein the baclrelips or springs are adapted to be clamped tothe. binding by splitmspring tubes.-

'A `25 .'Anotherfobjeetoi the-invention is to pron vide a convenient lmethod for assembling .a spring binder. p

#It-is alsoan object-oi theinvention'to construct yaspring .binder wherein the'clampe A- ing Vsprings areadapted'tobe.inserted-in vplace 'bymeansoif` a-wedge bar which is removed after the assembly of the binderhy 'expanding the 4springs byrmeans ofthe binder covers. f fltisfurthermore an objectoithisxinvention tol provide a binder wherein split springs or-clamping clips areheld. in place between transversely 'creased portions, oi'4 a v.one-piece covering by split retaining tubes.

-4o Y--Ar.further.object oi" the vinvention is 'to provideabinder wherein a iiexible binding is adapted-to .be held clamped .around they longitudinal margins oi split cylindrical springs by means of split resilient tubes.

v-it is also-an. object of the .inventionto provide a simple method-.for insertingfand retaining binder clamping springs `.within a binding rconnecting the bindery covers. ...tis'an important object oi' this invention 5o to provide .a binder-oisimple, .inexpensive yIUGrr GELLROY'B'UCHAN, or'lvnwnnxgivnw .realismeA Serial No. 429,611.-

and eii'ective construction wherein .the clamping springsor retaining looseleavesin placey are ,inserted in place-.betweenthe creasedportions of' a .binder. coveringby means of a 4wedge bar removable. after the 455 `(n'eased portions of. the .covering have4 been securedtothe longitudinal margins of .the clamping springs by. exterior. split .resilient tubes,v said .wedge .bar being removable. by opening said clamping springsbyoperation 6,0 ofthebindercovers g :Other and further important objects of tlnsinvention will be apparent iromthe disclosures ,in the specification, [and drawings.

The .invention..(in 4a-preferred form). iS ,6 5 l illustrated. inthe drawings and hereinafter more fully-described. Onthedrawingsz- Figure lis an .end View ofthebi-nderin yopenposition. i igure 2 isv an enlarged endviewof the binderin closed position showingleavesor Sheets clampedin place. Figure 3Y isy an ,enlarged detail transverse section of the binding` orelamping portions 7 5 ofthedevice. .FigureA is an end view Of\ the'binder oevers in open position oonnectedqbyan unformedilexible binding.` Figureis a similar view aftenthe. bind.- .8 0 Vinghas been shaped. y 7

Figure 6 isa planview oithe partly formed Abinder in4 open position showing the wedge and springs-in place. Figure 7 is an endY view thereoif4 Figure Sisan enlargedplan-view of the wedge engaged through aplurality ofbinder olampingsprings. Figure 9 is an enlarged setien takenon line-9f9 of FigureS-showingthe normal `9 0 posit-ion oa spring in do`tted lines. I

Figure ,l is yan enlarged I side elevation oi' oneof the clampingor retaining tubes,

f Figurell-is a section taken on line ll-ll A,The referente numeral iindicates 'apen' 1 00 of binder covers connected to one another by a tleiible binding 2. The binding 2 is integral with the coverings of the binder cover stiening boards and is adapted to be formed or shaped as shown in lligure 5 to aiiord two small inwardly curved parallel beads 3 connected by means or' a large curved portion l ol? semi-cylindrical form.L 1idldges' or creasesy 5 are formed where the large or main portion d of the binding joins the smaller curved beads 3. rl`he next step in the construction of the binder is to provide clamping means :for binder insert leaves 6. F or this purpose a plurality of cylindrical plate springs or back clips 7 areprovided, said springs being slit longitudinally to afford clamping edges or margins S. To mount ythe springs 7 a wedge bar 9 tapered at one end is driven or forced longitudinally through a plurality of the split springs 7 to force the clamping margins 8 apart as shown in Figures 8 and 9. The springs 7 are equally spaced from one another on the wedge bar and said wedge bar with the springs thereon is then placed within the main portion l of the binding as illustrated in Figures 6 and 7.

To secure the binding to the springs 7 metal retaining tubes 10 are provided. Each tube l0 is split longitudinally as at 11. The corners at one end oi each tube 10 are out away or rounded as at 12 to Jracilitate mounting of said tubes. To secure the tubes l0 in place the creased binder port-ions 5 are positioned so that part of the bindings are disposed on opposite sides of the longitudinal margins S of the springs 7 as illustrated in Figure 3. The split tubes l0 are next slidably engaged on the looped portions oi the binding thereby rigidly clamping said looped portions around the margins 8 of the springs 7. rlhe tubes when secured in place on the exterior of the binder seat in the binder beads 3. With the two split retaining tubes 10 secured in place to lclamp the binding to the springs 7', the binder is ready for use except that the wedge bar 9 must be removed from engagement with the springs 7. To remove the wedge bar the binder covers 1 are thrown back and forced toward each other until the outer surfaces contact. This action of the covers forces the clamping margins 8 oiQ the springs 7 apart into their outermost or open position, thereby permitting the wedge bar 9 to be withdrawn. Upon releasing the covers 1 the tensioned springs 7 act to force the binder beans 3 into tight Contact with each other as illustrated in Figure 1 to permit even a single loose leaiE to be held in place thereby it desired. The covers may now be closed swinging on the iierible hinge strips 13 which oit course form part oi' the binding.

To place loose leaves7 sheets oi paper,

pamphlets, or magazines in the binder the covers are thrown back and 'forced toward each other to force open the springs 7 and thereby separate the clamping beads 3.

The binding margins of the sheets or leaves 6 are then inserted between the beads 3 and the covers are released to permit the springs to clamp the leaves 6 between the clamping beads 3 as illustrated in Figure 2.

ln cases where flexible binder covers are desired instead of stili covers, the large sized stiffening boards may be omitted and small plates or boards 14 substituted thereior as illustrated in dotted lines in Figure 6. rlhese small boards are supplied for the 30 purpose or' permit-ting the clamping springs to be opened to permit loose leaves to bef inserted in place and removed from the binder.

Figure 12 covers a modified form of the S5 device similar to the form already described with the exception that the longitudinal margins oithe clamping springs or back clips 7 are curled or rolled to afford beads 15, around which portions of the binding l are adapted to be clamped by the split retaining tubes 10. y

lt will of course be understood thatW if desired only one long split spring may be used instead ot a plurality of shorter 95 granted otherwise than necessitated by the prior art and indicated by the claims.

l claim as my invention:

l. The method or" assembling a. binder by connecting two covers with a flexible binding, forming the binding to aiiord longitudinal creases therein, opening a plurality of split springs by `liorcing a. wedge therethrough and placing the open springs and the wedge within the binding. then clamping the creased portions of the binding around the longitudinal edges of said springs by sliding split tubes endwise onto the creased portions of the binding, and

then removing the wedge from engagement with said springs by forcing the springs open to a greater extent by moving the binder covers outwardly into Contact with each other.

2. ln a device of the class described7 a pair ot covers, a flexible binding connecting 125 said covers. a plurality of Q-shaped springs within said binfing, portions of the bindbei g 'folded about the edges oi' said springs. l*and two split tubes constituting clamping devices holding said Jfolds in place l other details 100 by clamping the flexible ma/tieral against In testimony whereof I have hereunto the springs, one of said tubes extending subscribed nay-name in the presence of two lo along one edge of each of the springs and subscribing Witnesses.

the other device extending along the opposite edge 0f each of the springs, the exible HUGH GELLROY BUCHAN' material extending' around the adjacent Witnesses: sides of said split tubes beyond them and F. E. CREGAR,

being connected to the covers. MADELINE SHAFFERY. 

